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This is documentation for an old release of NumPy (version 1.15). Read this page in the documentation of the latest stable release (version 2.2).

numpy.polynomial.legendre.legpow

numpy.polynomial.legendre.legpow(c, pow, maxpower=16)[source]

Raise a Legendre series to a power.

Returns the Legendre series c raised to the power pow. The argument c is a sequence of coefficients ordered from low to high. i.e., [1,2,3] is the series P_0 + 2*P_1 + 3*P_2.

Parameters:
c : array_like

1-D array of Legendre series coefficients ordered from low to high.

pow : integer

Power to which the series will be raised

maxpower : integer, optional

Maximum power allowed. This is mainly to limit growth of the series to unmanageable size. Default is 16

Returns:
coef : ndarray

Legendre series of power.

See also

legadd, legsub, legmul, legdiv